{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{8}{c}}
\toprule
                                &\multicolumn{3}{c}{\textbf{Inhibitory Control}}         &\multicolumn{1}{c}{\textbf{Memory}}&\multicolumn{4}{c}{\textbf{Attention}}                                     \\\cmidrule(lr){2-4}\cmidrule(lr){5-5}\cmidrule(lr){6-9}
                                &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}&\multicolumn{1}{c}{(7)}&\multicolumn{1}{c}{(8)}\\
                                &\multicolumn{1}{c}{Payment}&\multicolumn{1}{c}{Frac. Correct}&\multicolumn{1}{c}{Avg. Reaction}&\multicolumn{1}{c}{Payment}&\multicolumn{1}{c}{Payment}&\multicolumn{1}{c}{Inverse RT}&\multicolumn{1}{c}{Minor Lapses}&\multicolumn{1}{c}{False Starts}\\
\midrule
Night-Sleep Treatments          &     0.04         &     0.08         &     0.00         &     0.01         &     0.01         &    -0.02         &     0.02         &    -0.02         \\
                                &   (0.05)         &   (0.07)         &   (0.05)         &   (0.05)         &   (0.04)         &   (0.04)         &   (0.04)         &   (0.05)         \\
Nap Treatment                   &     0.05         &    -0.06         &     0.11\sym{**} &    -0.02         &     0.17\sym{***}&     0.13\sym{***}&     0.14\sym{***}&     0.00         \\
                                &   (0.04)         &   (0.06)         &   (0.05)         &   (0.04)         &   (0.04)         &   (0.04)         &   (0.04)         &   (0.05)         \\
\midrule
Participants                    &      449         &      449         &      449         &      449         &      452         &      452         &      452         &      452         \\
\bottomrule
\end{tabular}
}
